Car-bolster.



E. E. BE'NNERS.

GAB BOLSTEB.

APPLICATION FILED HOV. 28, 1908.

w wig@ .n @QJ E. BENNERS.' GARBOLSTBB.

ArPLIoATIoN FILED Nov. ze. 190s.

14.0011 For. I e/mP/Qs 2 SHEETS-SHEET 2.

Patented Jan, 11,1910.

IIT.. iN

ing detailed description of the invention.V

l To all whom it may concern:

EDWIN HENDRY BENNERS, or` nuzninriffianwfannsnv.

CAR-BOLSTER. v

Specication of Letters Patent. u:

Application filed'November 28, 1908. Serial No. 464,977.

Be it known that l., EDWIN HENDRY BEN- ixERs, a citizen of the United States, residing in Elizabeth, county'of Union, and State of New Jersey, haveinvented cert-ain new anduseful Gar-Bolsters, of which the tollowing is a s pecic'ation.

This invention is a bolster of simple construction and wherein is embodied a maXimum of strength for a minimum amount of material employed in its construction.v

Among the several features of novelty embraced in the invention, may be mentioned thefollowing, which, however, are not exclusive; the cross' sectional shape of several of .the members forming the construction ot the bolster, the particular arrangement and location of the tension and compression members of the bolster, and the particular construction of webs\at the respective ends of the bolster.

'The bottom member of both the truck and body bolste'rs, and the truck bolster in particular, `is channel shaped in cross section, the inner face of the channel in the truck bolster being preferably in the form of an 'inverted arch. The upper portions `of the side members of the truck bolster, in

the-preferred form, have their inner faces positioned at 'an oblique angle to the top member of said bolster, and, moreover, they are preferably made tapering in the directionin which they recede from the top member.v The upper and lower members of the truck bolster are joined by means of a plurality of compression and tension mem-l bers, respectively, 'said tension members being sp arranged-or positioned as to impart great.strength,rigidity and durability to .the structure.

y The foregoing featuresofconstruction of the upper and lower members, coupled with the cooperating compression and tension members, result in a structure having the Amarinrum of strength considering vthe comparatively small amount' of material `employed in the construction of the bolster.

Other features of novelty embodied in hereinbefore specified,

Inv the accompanying drawingsjI have illustrated differentl practical.v embodiments' ci the invention, but the constructions shown:

of the body bolster.

therein are to be understood asy illustrative,

vonlv, and not as defining the limits of the invention.

. Flgure 1 1s a v1ew partly in elevation and partly 1n longitudinal sectlon of a truck bolster constructed in accordance with 1- theinvention. Fig. 2 is a plan view. Figs. 8, 4C and 5 are vertical cross sections through said bolster on the lines ,3y-3, 4 4, and 5-5, respectively, of Fig. 1. Figs. 6 and 7 are detail cross-sections,through'a diag-1.

onal strut, and a vertical strut,'respectively, on the lines 6-6 and 7 7, of Fig. 1. Figs. S and 9 are cross sections similar to Figs. G and 7, respectively, of vmodified forms of the struts. Fig. 10 is an elevation, partlyk in section, showing a truck bolster' and a body bolster in cooperative. re` 'ion to each other, a partof the truck frame and lcertain bolster springs being shown for supporting the truck bolster. Fig. 1'1 is a plan. Figs. 12, 13 and 14e are vertical cross sections on thelines 12-.-12, 13-13' and 1li-elli, respectively, of Fig.1 11.

A practical form of bolster, A', for'use in connection with a` car truck is showniin Figs. 1 to 7, inclusive, of; the drawings. Said truck bolster, A, is represented in Fig. 10 as heilig supported by springs, B, within a suitable truck frame indicated generally at C. Said'bolsier A, is provided with a center bearing, a', which receives a depending center bearing, d, of a body bolster, D, all as will hereinafter more ful-ly appear.

I will now proceed to describe in detail bottom member, F, compression members Gn,

G, and tension,- members, H, H', andl, I1.

The top member, E, is in the form of a plate which may be curved lengthwise or it may occupy a horizontal position. This'v plate is shown as provided with the central bearing, a, side bearings, e, "e, and longitudinal openings, e', theends of vsaid top member bei-ng cut away as at e2. Bottom member, F, is curved 'for substantially its length except at Ithe end portions, f, thereofsaid end p'or-4 tionsV vbeing substantially 'horizontale and v.adapted' :to rec"eivef-"the bolsterv '."spriii'gs, B. Said bolster springs may beiretained'in position onv end'part, f, by any preferred. form'o spring seats should they ,be-desired.

Amessential feature of the present invenioo tion, in so far as it relates to bottom member, F, consists in'afchanneled construction of said bottom member. As shown, member, F, is provided with up-standing webs, f', at the sides thereof, it 1s formed with a substantially fiat bottom face, f2, and with a curved upper face, f3, thelatter being in the vform of an inverted arch, as shown in Figs.

3 and 4. .The arched upper face, f3, of bottom member, f, extends from one fiat end, f, to the other fiat end as indicated in Fig. 1, whereby the channeled form is imparted to bottom member, F, for substantially its length.

Top member, E, is provided at its respective side edges with longitudinal webs or flanges, g, g, the latter being positioned at an o tuse angle to the plane of said member, E, as shown in `Figs. 3 and 4, and, furthermore, each web, g, tapers in the direction which it extends from -said top member, E. Said Webs, g, are not at a right-,angle to top member, E, because, as previously stated, they occupy a slightly obtuse angle with respect to said top member. Top member, E, and bottom member, F, are joined at the sides of the bolster by two series of struts, or as they may be termed, compression members, Gr', G', and tension members, H, H', and I, I. The side portions of the bolster intermediate members E, F, are skeletonized to produce-the'ajoresaid tension and compression members or the vertical and diagonal struts, but th'e ends of members, E, F, are united by ,p1ates, E,' said ends being hollow, asshown in Figs. 1 and 5, and the top member being recessed at` e2, as hereinbefore described. PartsH, H', are tension members or diagonal trusses which converge downwardl from top member, E, toward the base o av king-pin post, J, and, also, toward bottom member, F. Parts I, I', are,

also, tension members or diagonal struts,"

and they incline from member, E, toward member, F, said parts, I, I, converging downwardly. Parts G, G, are vertical, and they serve as compression members or vertical struts. They are positioned intermediate diagonal struts, H, I, and H', I', respectively, diagonals, H, H', being between the vertical struts, see Fig. l. These struts join the webs, g, of top member, E, with flanges, f', of bottom member, F, but the struts of the two series are laterally inclined with respect one to the other and upwardly with respect to bottom member. F, whereby the bolster is given a tapering form in cross section, see Figs. 3 and 4.

The diagonal struts intermediate top and bottom members have their u per edges at an obtuse angle to the plane o top' member, E. In cross section, each strut is provided with'a flat bottom edge, lz, and a top curved edge, z', see the cross sectional views Figs. 6 and 7, but it is evident that said strut'v may have a channeled cross sectional shape,

shown at J in Figs. 8 and 9. Bottom meriber, F, is provided with central webs,

and with a plurality of transverse wel; L, L. These webs project upwardly fr the top face of said member, and they intessect as shown in Figs. l, 2 and 5. Central web, K, rises from the arched face, f3, of channeled member, F, and it runs from said face to the end of said bottom member, the top edges of said webs being Hush. The ends of bolster, A, are substantially rectangular in cross section, see Fig. 5, whereas at all other points intermediate the ends, the. bolster is, approximately,'tria ngular in c tion, bottom member, F, being considerably narrowerthan top member, E.- The end it the bolster may be said-to be skeletonizefl, and said ends are recessed at m for coperation with the channel guides of the truck side frames. Body bolster, D, shown in.

Figs. 10 to let, inclusive is constructed i 'iii a lower member, O, of channeled cross ses tion, said'lower member having side ianges, o, as shown. Said bolster consists of' said member, O, a top member, I), and side meinbers, Q, the bolster uniting the top and t tom members. Each bolster, that is, ti bolster, A, and body bolster, D, is cast in a single piece, it being preferred to make said 1 ings which are so distributed` as to retain l' the strength of the metal while reducing the weight of the structure. Said bolster is adapted to receive the sills of the truck frame, as shown in dotted lines in Fig. it), but if desired, the end portions of said bolster, D, may be recessed to provide seats of the usual form adapted to receive the side sills of the car body. i

Having thus fully described the invention,

what I claim as new,and desire to secure by 1"' i;

Letters Patent is:

l. A bolster having a lower member which. is channeled in cross section, an upper meauber, and struts intermediate said upper and lower members, certain of said struts being inclined upwardly and in diverging relation to each other to serve the purpose of the tension members.

2. A bolster having a lower member which is channeled in cross section, the inner tace. of said lower member having substantially the form of an inverted arch.

3. A bolster comprising a bottom member, the upper face of which is provided with a longitudinal channeh'a top member, and two l l il side members, the upper and inner face o each side member forming an obtuse angle with the under face of the top member.

' et. A bolster having a channeled bottom member, an upper member, and two side .members which taper at their upper endsl 1n pending flanges at the sides thereof, and'two side members which taper at their upper ends in the direction which they recede or extend from said upper member, the upper Yand inner faces of which side members form an obtuse angle with the inner faces of said depending flanges of the upper member.

l (i. A bolster comprising an upper member, a lower member, and two side members connecting said upper and lower members, each side member being skeletonized and produc. mg certain upwardly divergmg tension members intermediate certain compression members. 4

7. A bolster having upper andlower members, and upwardly diverging tension members intermediate the upper and lower members, the inner sides or faces of which tension-members form acute angles with said upper and lower members, respectively.

S. A bolster having upper and lower members, a central compression member, and twotension membersl extending from the upper member to the lower member and con- 'verging toward the base of said compression member, other downwardly converging tension members intermediate the upper and4 lower members, and compression members intermediate'the tension members. y

9. A'bolster having upper and-lower members, and a plurality of series of tension members, each having an arched inner face connecting' said upper and lower members',-

each series of tension members being at one j side of the bolster.

10. A bolsterhaving upper and lower members, and compression and tension members coiiperative therewith, ,eachv of said compression and tension membersbeing at one side of the bolster and having an arched inner face.

11. A bolstery having top and bottom members, cooperating side -members connectingv said top and bottom members, each end of said bolster being skeleto1`1ized said bottom member being provided at each end with a plurality of transverse webs and with a single longitudinal web, the latter intersecting said transverse webs at ,the middle thereof. s i

12. A bolster having top land bottom members, coperating side members connecting said top and bottommembcrs, and a central longitudinal web disconnected from the side members and the top member, said web projecting upwardly from the bottom member and extending lpart way the length of said bottom member, inwardly from the end thereof.

13. A bolster having top-and bottom members, cooperating side members connecting said top and bottom members, acentral longitudinal web extending upwardly from the bottom member and positioned intermediate said side members, and a plurality of transverse webs cooperating with said longitudinal web and connecting theside members.

14.. A bolster having upper and Ilower members, and compression and tension members coperating therewith and positioned at the sides of the bolster, said compression and tension members being .channeled in cross section. i

l5. A bolster comprising an upper member, a lower member, land skeletonized side members uniting the upper and lower 1nembers,each side member having a plurality of inclined tension members and forming,A also, the compression members, said compression and tension members being channeled in cross section.

16. A bolster comprising an upper member, a lower member, and skeletonizcd side members uniting the upper and lower members, certain parts of said skeletonized side members forming. upwardly diverging tension members'and producing, also, certain compression members. l ,In testimonywhereof 'I have signed my .name to this specification in the presence of two subscribing witnesses.'

EDWIN HENDRY BnNNn'Rs. vVlitnesses: i

H. I. BERNHARD, A -M. C. PowELL. 

